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Add 28/56 and 9/90

28/56 + 9/90 is 3/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 90 is 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    28/56 = 28 × 45/56 × 45 = 1260/2520
  3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
    9/90 = 9 × 28/90 × 28 = 252/2520
  4. Add the two fractions:
    1260/2520 + 252/2520 = 1260 + 252/2520 = 1512/2520
  5. 1512/2520 simplified gives 3/5
  6. So, 28/56 + 9/90 = 3/5

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